Category: Review

Coldcard MK4 – Hardware Wallet Review

Score: 37/100.
Active security advisory: a 5-year-old entropy bug has already cost real users over $100 million.

Score: 72/100.
Screenless NFC convenience meets a real, unpatchable laser attack disclosed against cards in circulation.

Score: 70/100.
The cheapest Ledger has the best-certified chip in the lineup, an inversion worth knowing before you buy.

Score: 76/100.
Confirmed unaffected by the Safe 3’s chip flaw, but skips native TRON support at a real price premium.

Score: 78/100.
Fully auditable TROPIC01 chip, undercut by a real Ledger Donjon laser fault-injection disclosure.

Score: 76/100.
Best chip Ledger makes, but closed-source firmware, the Recover controversy, and two breaches still linger.

CoinJar Card review: 52/100. A clean 13-year track record, but two independent reviewers agree its rewards barely exist.

RedotPay Card review: 52/100. Industry-leading spending limits, but the base card pays zero cashback and skips Proof of Reserves.

COCA Visa Card review: 71/100. An independently verified $0 fee structure, but a real deposit-address risk demands real attention.